OpenStack Zed : Add Compute Nodes2022/11/10 |
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Add Compute Nodes to run more instances.
This example is based on the environment like follows.
------------+-----------------------------+------------
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eth0|10.0.0.30 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+
| [ dlp.srv.world ] | | [ node01.srv.world ] |
| (Control Node) | | (Compute Node) |
| | | |
| MariaDB RabbitMQ | | Libvirt |
| Memcached Nginx | | Nova Compute |
| Keystone httpd | | |
| Glance Nova API | | |
+-----------------------+ +-----------------------+
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| [1] |
On new Compute Nodes, Set OpenStack Zed repository, refer to here of [3].
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| [2] |
On new Compute Nodes, Install KVM Hypervisor on Compute Node, refer to here.
It's unnecessary to set Bridge networking on the section [2] of the link. |
| [3] | Install Nova-Compute. |
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[root@node01 ~]# dnf --enablerepo=centos-openstack-zed,epel,crb -y install openstack-nova-compute
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| [4] | Configure Nova. |
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[root@node01 ~]# mv /etc/nova/nova.conf /etc/nova/nova.conf.org
[root@node01 ~]#
vi /etc/nova/nova.conf # create new [DEFAULT] state_path = /var/lib/nova enabled_apis = osapi_compute,metadata log_dir = /var/log/nova # RabbitMQ connection info transport_url = rabbit://openstack:password@dlp.srv.world compute_driver = libvirt.LibvirtDriver [api] auth_strategy = keystone [vnc] enabled = True # IP address compute instances listen # specify this node's IP server_listen = 10.0.0.51 server_proxyclient_address = 10.0.0.51 novncproxy_base_url = https://dlp.srv.world:6080/vnc_auto.html # Glance connection info [glance] api_servers = https://dlp.srv.world:9292 [oslo_concurrency] lock_path = $state_path/tmp # Keystone auth info [keystone_authtoken] www_authenticate_uri = https://dlp.srv.world:5000 auth_url = https://dlp.srv.world:5000 memcached_servers = dlp.srv.world:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = nova password = servicepassword # if using self-signed certs on httpd Keystone, turn to [true] insecure = false [placement] auth_url = https://dlp.srv.world:5000 os_region_name = RegionOne auth_type = password project_domain_name = default user_domain_name = default project_name = service username = placement password = servicepassword # if using self-signed certs on httpd Keystone, turn to [true] insecure = false [wsgi] api_paste_config = /etc/nova/api-paste.ini chmod 640 /etc/nova/nova.conf [root@node01 ~]# chgrp nova /etc/nova/nova.conf |
| [5] | If SELinux is enabled, change policy. |
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[root@node01 ~]# dnf --enablerepo=centos-openstack-zed -y install openstack-selinux |
| [6] | If Firewalld is running, allow service ports. |
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[root@node01 ~]# firewall-cmd --add-port=5900-5999/tcp success [root@node01 ~]# firewall-cmd --runtime-to-permanent success |
| [7] | Start Nova Compute Service. |
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[root@node01 ~]# systemctl enable --now openstack-nova-compute |
| [8] | Verify the status of Nova services on Control Node like here. If all State is [up], they are running normally. |
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# discover Compute Nodes [root@dlp ~(keystone)]# su -s /bin/bash nova -c "nova-manage cell_v2 discover_hosts"
openstack compute service list +--------------------------------------+----------------+------------------+----------+---------+-------+----------------------------+ | ID | Binary | Host | Zone | Status | State | Updated At | +--------------------------------------+----------------+------------------+----------+---------+-------+----------------------------+ | d5feb051-7c03-4f4d-bbf1-8c5302afd35f | nova-scheduler | dlp.srv.world | internal | enabled | up | 2022-11-10T04:19:48.000000 | | c9cf1db8-6205-4469-bc77-a6f827c4d38a | nova-conductor | dlp.srv.world | internal | enabled | up | 2022-11-10T04:19:53.000000 | | 17a2e455-e32c-4089-942e-379d00c6cd5d | nova-compute | dlp.srv.world | nova | enabled | up | 2022-11-10T04:19:47.000000 | | a50a51c7-a4d6-41eb-9f46-becb42e611d0 | nova-compute | node01.srv.world | nova | enabled | up | 2022-11-10T04:19:48.000000 | +--------------------------------------+----------------+------------------+----------+---------+-------+----------------------------+ |
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